Sahih Muslim 1226
صحيح مسلم#1226SahihAbu Huraira and Abu Sa'id narrated that the Messenger of Allah (ﷺ) saw sputum, and the rest of the hadith is the same
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 5:64